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Finding the Fourth Proportional to 225,988.95, 311,863.88 and 124,016.12

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Solution

The fourth proportional to 225,988.95, 311,863.88 and 124,016.12 is: 171,141.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,988.95 : 311,863.88 = 124,016.12 : x
  2. Step 2: Convert to fraction form
    225,988.95/311,863.88 = 124,016.12/x
  3. Step 3: Cross multiply
    225,988.95x = 311,863.88 × 124,016.12
  4. Step 4: Simplify right side
    225,988.95x = 38,676,148,365.75
  5. Step 5: Solve for x
    x = 38,676,148,365.75/225,988.95
  6. Step 6: Final answer
    x = 171,141.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.